Even better though would be to remove the word 'fiercely' completely. It make the sentence read in an extremely awkward way. The fact that she is surrounded by wolves already implies danger.
A group of 40 to 50 wild wolves fiercely surrounded a girl who looked to be around 16 years old.
Fantasy · White-Headed Dream
minor improvement that could be made to the translation: it would be better to replace the word 'fiercely' with 'menacingly'. Fiercely doesn't make as much sense in this sentence linguistically.
A group of 40 to 50 wild wolves fiercely surrounded a girl who looked to be around 16 years old.
Fantasy · White-Headed Dream
That's inaccurate, it said once a beastman becomes mates with someone they are dedicated to them for life. Beastman are unlikely to change their mind once they find a female they like, but it's not impossible. Alva even blatantly admitted to Bai Qingqing that if there was another more attractive female and they hadn't become mates yet he'd switch his affections to the more attractive one.
It had been mentioned in the second chapter that beastmen were willful beings. Once they laid eyes on someone they liked, it was decided for life. It could be that when he first saw Shen Yin, he had felt that she was different from others.
Beauty and the Beasts
Fantasy · White-Headed Dream